How to Identify Sunset Thicklip Gourami

To identify Sunset Thicklip Gourami (Trichogaster labiosa), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Wild type coloration varies, often a brownish-orange to reddish-orange body with faint vertical banding. Fins may have iridescent blue or green hues. Cultivated 'Sunset' varieties are selectively bred for intense orange-red coloration, often lacking distinct banding. Males are typically more brightly colored than females, especially during breeding, and may develop extended dorsal and anal fins.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Thick, fleshy lips, Elongated, thread-like pelvic fins used as tactile organs, Labyrinth organ for atmospheric breathing, Males often have pointed dorsal fins, while females have rounded dorsal fins

Dorsal fin

Long and low, extending almost to the caudal fin. Males have a pointed posterior end, females have a rounded one.

Tail fin

Rounded to slightly emarginate.

Pectoral fin

Fan-shaped, transparent.

Distinctive fins

Pelvic fins are modified into long, filamentous, sensory feelers.

Identification Tips

1. 1

   Lips

   Observe the lips; they are noticeably thicker and fleshier compared to other gourami species like the Dwarf Gourami (Trichogaster lalius).

2. 2

   Pelvic Fins

   Note the long, thread-like pelvic fins, characteristic of all gouramis in the suborder Anabantoidei, used for sensing their environment.

3. 3

   Size

   Adults typically reach 7-9 cm (2.8-3.5 inches) in total length, making them larger than Dwarf Gouramis but smaller than larger gourami species.

4. 4

   Dorsal Fin Shape (Sexing)

   Males usually have a more pointed posterior end to their dorsal fin, while females have a rounded one. Males are also generally more intensely colored.

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